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Faria, CFD; Du, ML; Faria, CFD , Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany.
Enhancement of bichromatic high-order-harmonic generation with a high-frequency field
发表期刊PHYSICAL REVIEW A
关键词Attosecond Pulse Trains Ultrashort Laser-pulses Static Electric-field Ray-atom Scattering Magnetic-fields Phase-control Emission Polarization Ionization
摘要Using a high-frequency field superposed to a linearly polarized bichromatic laser field composed by a wave with frequency omega and a wave with frequency 2 omega, we show it is possible to enhance the intensity of a group of high harmonics in orders of magnitude. These harmonics have frequencies about 30% higher than the monochromatic-cutoff frequency, and, within the three-step-model framework, correspond to a set of electron trajectories for which tunneling ionization is strongly suppressed. Particular features in the observed enhancement suggest that the high-frequency field provides an additional mechanism for the electron to reach the continuum. This interpretation is supported by a time-frequency analysis of the harmonic yield. The additional high-frequency field permits the control of this group of harmonics leaving all other sets of harmonics practically unchanged, which is an advantage over schemes involving only bichromatic fields.
2001
ISSN1050-2947
卷号64期号:2页码:-
学科领域Physics
收录类别SCI
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13700
专题理论物理所科研产出_SCI论文
通讯作者Faria, CFD , Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany.
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Faria, CFD,Du, ML,Faria, CFD , Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany.. Enhancement of bichromatic high-order-harmonic generation with a high-frequency field[J]. PHYSICAL REVIEW A,2001,64(2):-.
APA Faria, CFD,Du, ML,&Faria, CFD , Max Planck Inst Phys Komplexer Syst, Nothnitzer Str 38, D-01187 Dresden, Germany..(2001).Enhancement of bichromatic high-order-harmonic generation with a high-frequency field.PHYSICAL REVIEW A,64(2),-.
MLA Faria, CFD,et al."Enhancement of bichromatic high-order-harmonic generation with a high-frequency field".PHYSICAL REVIEW A 64.2(2001):-.
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